Flanging machine



R. 0. HENDRICKSON AND K. E. MOREE.

FLANGING MACHINE.

APPLICATION FILED JULY 26,1919.

Patented June 20, 1922.

3 SHEETS-SHEET 1.

R. 0. HENDRICKSON AND K. E. MOREE.

FLANGING MACHINE. APPLICATION FILED JULY 26,}919;

Patented June 20, 1922.

3 SHEETS-SHEET 2.

lllIl IIIIIIIIHIIHHHIIH R. O. HENDRICKSON AND K. MOREE.. FLANGING MACHINE.

APPLICATION FILED JULY 26,1919. 1,420,427'.-

Patented June 20, 1922.

3 SHEETS-SHEET 3.

Liam W4 v 0 orws.

umrso s'rA'rEs PATENT OFFICE.

ROBERT 0. nENnnrcKsoN'ANn- KINSEL EARL- MQREE, or RACINE, wIscoNs IN, AssIGNoEsBY MESNE ASSIGNMENTS, TO J. I. oAsE PLOW oEKs COMPANY, OF RAGINE,.WISC01\TSI1\T, CORPORATION OF DELAWARE.

FLANGING MACHINE.

T 0 all whom it may concern:

Be it known that we, RoBERT O. HENDRI K- soN and KINsEL EARL MonEE, citizens of the United States, residing at Racine, 1n the county of Racine and 'State of VVlSCOIlSlIl, have invented certain new and useful Improvements in Flanging Machines, of which the following is a specification.

For certain forms oftractor and the like, ground wheels are adopted having broad rims of sheet steel, connected to the hubs by suitable metal spokes and providedon their outer peripheries with'spokes or projectlons for gripping the ground or roadway over which the wheels travel. Such rims are commonly cylindrical bands and in order to stiflen them they are sometimes provldedor formed with inwardly extending flanges at their respective edges. The present invention relatesto a machine which receives a plain cylindrical band of sheet metal of suflicient width to provide the cylindrical tread and flanges of the desired. depth and bends the edges of the bands to form said flanges. The machine comprises a rotating mandrel or support upon which the cylindrical band which is to form the rimis secured from within and a pair of rollers so mounted in respect to the mandrelthat they may be fed inward against the band upon the latter to graduallybend the edges whichare to constitute the respective flanges inward into parallel planes. lVith the subsequent operations of providing the rim with spokes and spuds the present invention has nothing to do;

In the accompanying drawings we have shown, and in the following specification described in detail apreferred form of our invention. It is to be understood,thow ever,

that the specific disclosure is for the'purpose of'exemplification only andthat the. scope of the invention is definedin the following claims in which we have. endeavored to 'distinguish it from the prior art. so far as known to us without, however, relinquishing or abandoning any portion or feature there- Of. v p I i w 7 Referring now to the accompanying drawings, Fig. 1 is a plan,partly in horizontal section, of a flanging machine embodying our invention; Fig. 2 is a side elevation thereof; Fig. 3 a vertical section on the plane 1919. Serial No. 313,457.

4 and 5 horizontal sectionsof a detail show- Specification of Letters Patent. Patented J 20 1922' V Application filed July 26,

ing respectively parts in different positions which they occupy during the bending or fianging operation. The rotating mandrel may be of any preferred construction provided that it affords means for firmly holdare to be formed thereon and permits of the removalof the rims after the flanges have been formed. We' have shown the mandrel as compris ng anjinteg'ral or rigid core 8 '60 ing the bands 7 F ig. 2'from which the rims having a rim 9' and spokes 10 connected to a suitable hub. This core maybe cast in tegralif desired. At suitable intervals about 1ts periphery the'co reis provided with radially movable shoes 11 which are adjusted by means or screw bolts 12 ta'pped into lugs 13 formed or provided upon the integral'core of the mandrel; As seen in Fig. 2 there are three of the segmental shoes each of which is supported at its center by one of the adjustable screw-bolts 12. Adjacent ends of the segmental shoes are supported by blocks or bars l2 which are adjusted inwardly and outwardly by means of screws :12. v The ends of the segments are rabbetedto provide bearings for thebars 12 and, in the position shown in F ig..2 inwhich the segments are adjusted outwardly to "support a tire 7 the ends of adjacent shoesare 'spacedapart as at sea: Fig. '2. Each of thevsegments is pro-- vided near its center With an inwardly projecting lug b which, bearing against the corresponding lug 13 on the mandrel, supports the segment against circumferential'move ment. Sufficient adjustment. is provided sothat the shoes may be pressed firmly against the inner surface of the band to secure the latter in proper position upon the mandrel prior to the fianging operation and withdrawn when the flangin'g operation is completed ,a suflicient distance to permit the flanged rim to be remove d 'ax'ially oil the mandrel. The mandrel is journaled upon a rigid frame and provided with rotating mechanism, the particularform of the mounting and driving mechanism being immaterial provided therequired strength and power is furnished. In the particular deviceeillustrated-we have shown the frame as comprising parallel side members 14, 15 and end members lo, 17 formed otheavy sec- 3,

"described, at a slow speed.

tions of I-beams (see Fig. 2) and the mandrel is journaled transversely on the frame, the shaft 518013 the mandrel'beingjournaled in housings 19, 20 on theside members 14, 15 of the frame respectively; The shaft 18 is provided with a gear 21 which is driven by a pinion 22 upon jack shaft 23 which is likewise journaled in the frame and carries a inward against the fiangeportions of the band upon the mandrel, their first contact therewith being while they are almost axially parallel tothe shaft of the mandrel (see Fig. 5) from which positionthey'are slowly "swung to the position perpendicular tothe 'axisof the mandrel (see Fig. 4). In. order that the rollers may turn or spin'th'e. curved corners on the rimshown in Fig: 4 it is necessary that they swing onarcs 'thejcenters of whichare concentric with the saidcurved corners, and it is" a further requisite that prior to the beginning of the spinning or bending operation'the rollersbe withdrawn to permit the ready application of therim band .to the mandrel, as shown inFig. With this in view a carriage'30 upon which the rollers'are borne dovetailed tofslide upon a guide31 upon which'it may travel toward and fromthe mandrel, said carriage compr ising a top pl'ate 44'and-a depending member32' which is engaged by a screw 33 carried in Qa' heavy standard 34, the screw being for the purpose of adjusting; the" car "riage along the guide in an obvious manner,

and i I extending V loosely through the frame member 16. I V, v Obviously, in order that the rollers may form the smallarc 35 at the junction of the flanges and the tread o'f the tire,.they' must be swung abo'ut axes respectively concentric with said curves. For this' ,purpose the rollers 28, 29 are horizontally j ournaled respectively in the upper end of swinging v 13,8", 39 which arepivoted at their lower ends v the depending member 32, the construcftionof this depending member and plate being-such thatwhen it is carried forward by means of thescrew 33, the axes of rotaas at 40, 41,;in a horizontal'plate 42 carried tion of'the respective arms are so located as to permit"the rollers carried thereby to "swlng in the arepre'viously described. The

depending member is partially supported by a roller 42 which travels ontrack 43 as the carriage is fed toward or away from the mandrel. In order to support the rollers during their swinging movement to form the corners of the tire, the top plate 44 of the carriage'is provided witha pairof arcuate tracks 45, 46,- concentricawith thepivots of the respective arms and against which the upper ends of the latter'bear. The arms may be provided with anti-friction rollers at these respective points ifdesired. In order to swing the armsabout their pivots during the spinning operation a pair of links 47, 48 are pivoted to the upper ends of the respective armsand to a common yoke 49 which may be forced inward toward the mandrel by means of a screw 50. The

latter may be driven by a. hand-wheeler shown in the drawingsa hand-wheel 51 for the purpose.

In operation the carriage carrying the rollers are withdrawn a conven ent distance power mechanism, as desired, butwehave from the .inandrel, and the latter with its shoes retracted receives the band or cylinder whichisto form thetire; The shoesare then fed; outward to firmly support the band.

The carriage with its rollers then'fed inward by the screw 33 until the rollers engage the edges of the band on the mandrel'and, the

mandrel being in the V meantime V revolved, bend them to theposition'shown in Figt5. The hand-wheel is then: turned to drive the yoke 49 inwardly'toward themandrel and the links connected to said yoke iand the roller-carrying armsfthen slowly swing the latter about, the mandrel and tire until they reach the position shown in'Fig. 4. The

tracted position. The tire is thenstripped ofi' the mandrel by withdrawing the shoes from contact" with said tire.

r We claim:

LiIn'a device of theclassdescribed, a frame, a mandrel revolubly mounted on the frame and adaptedto receive'and hold on its periphery a band of metal to be flanged "treatment of the tire is then completed'and the parts are restored "to the normal or re with the edges thereof extending beyond the 9 mandrel, a guide onthe frame extending substantially radially of the mandrel, a carriage mounted to slide on the guide, means for adjusting the carriage on the guide toward and i from the mandrel, a depending member 32 on the carriage, a pair of arms 38,39 pivoted at their lowerends-"onisaid depending member, arcuate guide plates 45,

'46 on the carriage'concentric'withfthe ares of the respective arms and againstwhich theiupper ends ofthe latter bear, rollers 28, 29, ournaled on: horizontal axes in theupper ends of the respective arms, and means for swinging the arms andt he rollers vcar,-

ried thereby about the axesol the respective arms. I I

2. a device of the class'described, a frame, a mandrel revolubly mounted 011 the frame and adapted to receive and hold on its periphery a band of metal to be flanged with the edges thereof extending beyond the mandrel, a guide on the frame extending substantially radially of the mandrel, a carriage mounted to slide on the guide, means for adjusting the carriage on the guide toward and from the mandrel, a depending member 32 on the carriage, a pair of arms 38, 39 pivoted at their lower ends on said depending member, arcuate guide plates 4:5,

46 on the carriage concentric with the axes of the respective arms and against which the upper ends of the latter bear, rollers 28, 29 journaled on horizontal axes in the upper ends of the respective arms, and means for swinging the arms and the rollers carried thereby about the axes of the respective arms comprising links 47, 48, pivoted to said arms, a yoke 49 to which said links are pivoted and an adjusting screw 50 connected to said yoke for moving the same toward and from said mandrel.

3. In a device of the class described, a mandrel adapted to receive a cylindrical band and to be slowly rotated on a horizontal axis, a pair of arms pivoted at points.

substantially lower than the mandrel for a swinging movement in a horizontal plane, a pair of rollers carried by the respective arms at substantially the level of the axis of the mandrel, guides for the respective arms substantially in the horizontal plane of said rollers and adapted to support said arms against the pressure of said rollers, means for swinging the roller-carrying arms about their respective axes comprising a screw, a nut movable on said screw, and links connecting said nut to the respective arms.

ROBERT o. HENDRICKSON. KINSEL EARL MOREE. 

